Praseodymium
[,preiziәu'dimiәm]
Definition
(noun.) a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process.
Checker: Mattie--From WordNet
Definition
(n.) An elementary substance, one of the constituents of didymium; -- so called from the green color of its salts. Symbol Ps. Atomic weight 143.6.
Typist: Remington
Examples
- Neodymium and Praseodymium discovered by Welsbach. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
Typed by Hester